Pepco said it has signed a 20-year power purchase agreement with the owner of the wind farm to help meet Delaware's clean energy goals, which require Delmarva Power to supply 25 percent of its energy from clean sources by 2025.

"The Chestnut Flats wind farm is the third of our land-based wind procurements to come online," said Gary R. Stockbridge, Delmarva Power Region President. "This is another example of working regionally to make a difference in delivering clean, green energy. We support renewable standards, and we recognize it takes a long-term plan to achieve these ambitious goals."

Delmarva Power will purchase 100 percent of Chestnut Flats' output.

The wind farm, featuring 19 wind turbines from the Spanish manufacturer Gamesa, is the third to come online for the utility, Delmarva said.

The wind farm located in Logan Township is owned by enXco, an affiliate of Electricite de France.